Pith Number

pith:ODDBGT5I

pith:2018:ODDBGT5I3JOSF24KYZ2TGP55XQ

not attested not anchored not stored refs pending

A Greedy Heuristic for Crossing-Angle Maximization

Almut Demel, Dominik D\"urrschnabel, Lasse Wulf, Marcel Radermacher, Tamara Mchedlidze

arxiv:1807.09483 v2 · 2018-07-25 · cs.CG · cs.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ODDBGT5I3JOSF24KYZ2TGP55XQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:09:23.801609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70c6134fa8da5d22eb8ac675333fbdbc32637d435d91cc86c8f03e39d0923a7f

Aliases

arxiv: 1807.09483 · arxiv_version: 1807.09483v2 · doi: 10.48550/arxiv.1807.09483 · pith_short_12: ODDBGT5I3JOS · pith_short_16: ODDBGT5I3JOSF24K · pith_short_8: ODDBGT5I

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ODDBGT5I3JOSF24KYZ2TGP55XQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 70c6134fa8da5d22eb8ac675333fbdbc32637d435d91cc86c8f03e39d0923a7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44ad1c8832b4dda4537d2b69a1cdcb58aedf4e795c6f7637876c129bb324dcea",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-07-25T08:43:03Z",
    "title_canon_sha256": "ba80bc403ed408dae5798307c72e63047575ca73e1f078daa97820dbbcaa213c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09483",
    "kind": "arxiv",
    "version": 2
  }
}